Electronic instruments. Electronic measurements. Electronic instruments--Calibration. Electronics--Standards. Automatic data collection systems. Transducers. Embedded computer systems. Switching power supplies. Analog to digital converters. Signal operators. Oscillators, Microwave. Microwave devices. Electric measurements--Instruments. Oscilloscopes. Oscillators. Function generators (Electric instruments) Frequency synthesizers. Pulse generators. Digital counters. Spectrum analyzers. Electrooptics. Time-domain reflectometry. Impedance (Electricity)--Measurement. Semiconductors--Testing--Instruments and supplies. Electric network analyzer. Electric interference. Electric currents--Grounding. Interface circuits. Digital electronics. Actuators. Detectors.